Audience: Everyone

The short answer: Selfie comparison (also called biometric verification) verifies a person's identity by comparing a real-time selfie to their provided ID. Read Identity verification overview for more about identity verification methods.


How it works

First, the person verifying their identity:

  1. Captures images of their photo ID (such as a driver's license).
  2. Takes pictures of their face.

Next, the system or an agent compares these photos to confirm the person on the ID matches the person completing the transaction.


When selfie comparison is used

Selfie comparison is used across all Proof transaction types — Sign, Identify, Verify, and Notarize. Depending on how the sender configured the transaction, it may be used as:

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If you're completing a multi-signer transaction, selfie comparison is only available in lieu of KBA for co-located signings — where all signers are physically together and share one device. See Multiple-signer transactions overview for other multi-signer transaction types.

For notarizations on the Proof platform, biometrics are accepted as an identity verification method for notaries commissioned by:

  • Michigan
  • Nevada
  • New York
  • Pennsylvania

Summary Checklist

  • Selfie comparison = real-time selfie matched against the provided ID. Also called biometric verification.
  • Used across Sign, Identify, Verify, and Notarize — as preferred method or KBA fallback.
  • For notarizations, biometrics are accepted in: MI, NV, NY, PA.
  • For multi-signer transactions, selfie comparison only works on co-located signings (shared device).
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Still unsure? Contact Proof Support for help.

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